Central Power Supply: Description and Operation

PURPOSE
The base module (BM) N16/1 controls the power distribution to the individual control modules and various output devices. The BM also houses the fuses for many of these components.

Base Module Fuse Location And I.D.:

COMPONENTS POWERED BY BASE MODULE

a = Location in Model 140
b = Location in Model 124

F1 Fused voltage supply for:
^ Stop lamp switch (ASD/ASR) (S9/1)
^ ABS (N30) or ABS/ASR (N30/1) control module
^ ASD (N30/2) control module

F2 Fused voltage supply for (engines 104, 119 up to approx. 08/92):
^ "CHECK ENGINE" malfunction indicator lamp (A1e26)
^ LH-SFI control module (N3/1)
^ Diagnostic module (N59) (MY92 California version engines)
^ Fuel pumps relay module (K27)
^ Ignition control module (knock sensor N1/3)
^ Secondary air injection relay module (K17)
^ Transmission upshift delay relay module (K29)
^ Upshift delay solenoid valve (Y3/2)
^ EGR switchover valve (Y27)
^ Adjustable camshaft timing solenoid (Y49)
^ Left adjustable camshaft timing solenoid (Y49/1)
^ Right adjustable camshaft timing solenoid (Y49/2)
^ Purge switchover valve (Y58/1)
^ Fuel injectors (Y62)

F2 Fused voltage supply for (engines 104, 119 as of approx. 09/92):
^ "CHECK ENGINE" malfunction indicator lamp (A1e26)
^ LH-SFI control module (N31/1)
^ Diagnostic module (N59) (MY92 California version engines)
^ Fuel pumps relay module (K27)
^ Ignition control module (knock sensor N1/3) (as of approx. 06/91)
^ Fuel injectors (Y62)

F3 Fused voltage supply for:
^ SPS (N49/1) control module
^ ADS (N51) control module
^ TCM (5-speed automatic) (N15/1) control module

F4 Fused voltage supply for (engines 104, 119 as of approx. 09/92):
^ Secondary air injection relay module (K17)
^ Fuel pumps relay module (K27)
^ Transmission upshift delay relay module (K29)
^ EGR switchover valve (Y27)
^ Adjustable camshaft timing solenoid (Y49)
^ Left adjustable camshaft timing solenoid (Y49/1)
^ Right adjustable camshaft timing solenoid (V49/2)
^ Purge switchover valve (Y58/1)